IEC 63044-3:2017/AMD1:2021
(Amendment)Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements
General Information
- Abstract
- Status
- Published
- Publication Date
- 03-May-2021
- Technical Committee
- TC 23 - Electrical accessories
- Drafting Committee
- WG 12 - TC 23/WG 12
- Current Stage
- PPUB - Publication issued
- Start Date
- 04-May-2021
- Completion Date
- 31-May-2021
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IEC 63044-3:2017/AMD1:2021 - Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements Released:5/4/2021
IEC 63044-3:2017/AMD1:2021 - Amendement 1 - Systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) et systèmes de gestion technique du bâtiment (SGTB) – Partie 3: Exigences de sécurité électrique/4/2021
IEC 63044-3:2017/AMD1:2021 - Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements/4/2021
Overview
IEC 63044-3:2017/AMD1:2021 is an important amendment to the international standard for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS), specifically focusing on Part 3: Electrical Safety Requirements. Published by the International Electrotechnical Commission (IEC), this amendment sets the minimum electrical safety requirements for devices used in HBES/BACS environments to ensure protection from electrical hazards, overvoltages, and touch currents.
This amendment updates and clarifies specific terms and safety protocols within the standard, emphasizing the use of the term "network" instead of "circuit" to align with modern technological architectures used in smart building systems. It also refines compliance guidelines to support safer electrical installations in residential and commercial buildings.
Key Topics
Electrical Safety Requirements
IEC 63044-3:2017/AMD1:2021 specifies critical safety requirements and compliance criteria for HBES/BACS. These include:- Protection against electrical hazards originating from devices.
- Safeguarding against overvoltages on networks.
- Limiting touch current to ensure user and device safety.
- Protection against hazards caused by different network types.
- Communication wiring protection against overheating due to excessive current.
Terminology Adjustments
This amendment replaces the term "circuit" with "network" throughout the document, reflecting the practical design of interconnected building automation systems.Material Classification
Devices in HBES/BACS must comply with minimum material class IIIa (Comparative Tracking Index CTI = 175 V), ensuring the use of durable, high-quality insulation material for enhanced safety.Network Interface Classifications
Clause 4 concerning classification of HBES/BACS network interfaces has been voided, streamlining the focus on device-level safety requirements.Safety Standard Applications
The amendment clarifies the application of electrical safety requirements:- If a device's safety standard does not specify HBES/BACS electrical safety requirements, IEC 63044-3 shall apply.
- If such requirements are specified in the product standard, IEC 63044-3 represents the minimum compliance baseline.
Applications
IEC 63044-3:2017/AMD1:2021 is essential for manufacturers, system integrators, and safety engineers involved with:
- Home and Building Electronic Systems: Ensuring electrical safety in smart homes using interconnected devices like lighting controls, sensors, and actuators.
- Building Automation and Control Systems: Protecting automated HVAC controls, security systems, and energy management solutions against electrical risks.
- Installation and Maintenance: Guiding safe installation practices, network wiring protection, and device compliance verification.
- Product Development and Certification: Assisting manufacturers in aligning product designs with international electrical safety standards to obtain certifications and market approvals in global markets.
Related Standards
IEC 63044-3:2017/AMD1:2021 cross-references several critical IEC and ISO standards for comprehensive safety regulation and device interoperability:
- IEC 63044-1: Defines terms and general requirements for HBES/BACS.
- IEC 61558 series: Safety requirements for transformers and power supplies used in HBES/BACS.
- IEC 60730 series: Automatic electrical controls for household and building applications.
- IEC 60664-1: Insulation coordination for equipment within electrical installations.
- IEC 62949: Safety requirements related to touch current limitations on ICT networks.
- IEC 61140: Protection against electric shock-common safety principles.
- IEC 62368-1: Safety requirements for audio, video, and information technology equipment.
- ISO 16484-2: Management and automation systems for building environments.
Adhering to this amendment ensures compliance with the latest electrical safety protocols in smart building networks, reducing risks and supporting the integration of advanced electronic systems.
SEO Keywords: IEC 63044-3 amendment, electrical safety requirements, HBES, building automation control systems, BACS, smart building safety standards, electrical network safety, IEC standards, home automation electrical safety, building electronic systems compliance
Relations
- Effective Date
- 05-Sep-2023
Buy Documents
IEC 63044-3:2017/AMD1:2021 - Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements Released:5/4/2021
IEC 63044-3:2017/AMD1:2021 - Amendement 1 - Systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) et systèmes de gestion technique du bâtiment (SGTB) – Partie 3: Exigences de sécurité électrique/4/2021
IEC 63044-3:2017/AMD1:2021 - Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements/4/2021
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Frequently Asked Questions
IEC 63044-3:2017/AMD1:2021 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements". This standard covers: Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements
Amendment 1 - Home and building electronic systems (HBES) and building automation and control systems (BACS) - Part 3: Electrical safety requirements
IEC 63044-3:2017/AMD1:2021 is classified under the following ICS (International Classification for Standards) categories: 29.120.01 - Electrical accessories in general; 29.120.99 - Other electrical accessories. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 63044-3:2017/AMD1:2021 has the following relationships with other standards: It is inter standard links to IEC 63044-3:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
IEC 63044-3:2017/AMD1:2021 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
IEC 63044-3 ®
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
AMENDMENT 1
Home and building electronic systems (HBES) and building automation and
control systems (BACS) –
Part 3: Electrical safety requirements
IEC 63044-3:2017-01/AMD1:2021-05(en)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
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need further assistance, please contact the Customer Service
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IEC 63044-3 ®
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
AMENDMENT 1
Home and building electronic systems (HBES) and building automation and
control systems (BACS) –
Part 3: Electrical safety requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.01; 29.120.99 ISBN 978-2-8322-9769-8
– 2 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND
BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) –
Part 3: Electrical safety requirements
AMENDMENT 1
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 63044-3:2017 has been prepared by IEC technical committee 23:
Electrical accessories.
The text of this Amendment is based on the following documents:
CDV Report on voting
23/912/CDV 23/961A/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.
© IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 4 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
INTRODUCTION
In the last sentence of the third paragraph, replace "circuit" with "network".
In the first sentence of the fourth paragraph, replace "products" with "devices".
In the last sentence of the fourth paragraph, replace "circuit" with "network".
In the fifth paragraph, replace "products" with "
...
IEC 63044-3 ®
Edition 1.0 2021-05
NORME
INTERNATIONALE
AMENDEMENT 1
Systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) et
systèmes de gestion technique du bâtiment (SGTB) –
Partie 3: Exigences de sécurité électrique
ICS 29.120.01; 29.120.99 ISBN 978-2-8327-0559-9
IEC 63044-3:2017-01/AMD1:2021-05(fr)
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
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– 10 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
SYSTÈMES ÉLECTRONIQUES POUR LES FOYERS DOMESTIQUES ET LES
BÂTIMENTS (HBES) ET SYSTÈMES DE GESTION TECHNIQUE DU
BÂTIMENT (SGTB) –
Partie 3: Exigences de sécurité électrique
AMENDEMENT 1
AVANT-PROPOS
1) La Commission Électrotechnique Internationale (IEC) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l’IEC). L'IEC a pour objet de
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L’Amendement 1 de l’IEC 63044-3:2017 a été établi par le comité d’études 23 de l’IEC: Petit
appareillage.
La présente version bilingue (2025-07) correspond à la version anglaise monolingue publiée en
2021-05.
La version française de cette norme n'a pas été soumise au vote.
La langue employée pour l'élaboration de cet Amendement est l'anglais.
© IEC 2021
Ce document a été rédigé selon les Directives ISO/IEC, Partie 2, il a été développé selon les
Directives ISO/IEC, Partie 1 et les Directives ISO/IEC, Supplément IEC, disponibles sous
www.iec.ch/members_experts/refdocs. Les principaux types de documents développés par
l'IEC sont décrits plus en détail sous www.iec.ch/standardsdev/publications.
Le comité a décidé que le contenu de ce document ne sera pas modifié avant la date de stabilité
indiquée sur le site web de l'IEC sous webstore.iec.ch dans les données relatives au document
recherché. À cette date, le document sera
• reconduit,
• supprimé,
• remplacé par une édition révisée, ou
• amendé.
– 12 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
INTRODUCTION
Dans la dernière phrase du troisième alinéa, remplacer "circuit" par "réseau".
Dans la première phrase du quatrième alinéa, remplacer "produits" par "dispositifs".
Dans la dernière phrase du quatrième alinéa, remplacer "circuit" par "réseau".
Dans le cinquième alinéa, remplacer "produits" par "dispositifs".
Dans la première phrase du sixième alinéa, remplacer "produits" par "dispositifs" et supprimer
"circuit de" avant "réseau".
Au premier point de la liste à puces, supprimer "circuit" avant "TBTP".
1 Domaine d’application
Remplacer les deux premiers alinéas par le texte suivant:
"Le présent document spécifie les exigences de sécurité électrique relatives aux HBES/SGTB."
Dans le troisième alinéa, supprimer "réseau" avant "HBES/SGTB".
...
IEC 63044-3 ®
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Home and building electronic systems (HBES) and building automation and
control systems (BACS) –
Part 3: Electrical safety requirements
Systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) et
systèmes de gestion technique du bâtiment (SGTB) –
Partie 3: Exigences de sécurité électrique
ICS 29.120.01, 29.120.99 ISBN 978-2-8327-0559-9
IEC 63044-3:2021-05(en-fr)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either
IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright
or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local
IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the
The advanced search enables to find IEC publications by a publications previews, graphical symbols and the glossary.
variety of criteria (reference number, text, technical With a subscription you will always have access to up to date
committee, …). It also gives information on projects, content tailored to your needs.
replaced and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published containing more than 22 500 terminological entries in English
details all new publications released. Available online and and French, with equivalent terms in 25 additional languages.
Also known as the International Electrotechnical Vocabulary
once a month by email.
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer
Service Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications gratuitement tous les aperçus des publications, symboles
IEC en utilisant différents critères (numéro de référence, graphiques et le glossaire. Avec un abonnement, vous aurez
texte, comité d’études, …). Elle donne aussi des toujours accès à un contenu à jour adapté à vos besoins.
informations sur les projets et les publications remplacées
ou retirées. Electropedia - www.electropedia.org
Le premier dictionnaire d'électrotechnologie en ligne au
IEC Just Published - webstore.iec.ch/justpublished monde, avec plus de 22 500 articles terminologiques en
Restez informé sur les nouvelles publications IEC. Just anglais et en français, ainsi que les termes équivalents
Published détaille les nouvelles publications parues. dans 25 langues additionnelles. Egalement appelé
Disponible en ligne et une fois par mois par email. Vocabulaire Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-
nous: sales@iec.ch.
– 2 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND
BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) –
Part 3: Electrical safety requirements
AMENDMENT 1
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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Amendment 1 to IEC 63044-3:2017 has been prepared by IEC technical committee 23:
Electrical accessories.
The text of this Amendment is based on the following documents:
CDV Report on voting
23/912/CDV 23/961A/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.
© IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 4 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
INTRODUCTION
In the last sentence of the third paragraph, replace "circuit" with "network".
In the first sentence of the fourth paragraph, replace "products" with "devices".
In the last sentence of the fourth paragraph, replace "circuit" with "network".
In the fifth paragraph, replace "products" with "devices".
In the first sentence of the sixth paragraph, replace "products" with "devices" and delete "circuit"
after "network".
In the first bulleted list item, delete "circuit" after "PELV".
1 Scope
Replace the two first paragraphs with the following:
"This document specifies the electrical safety requirements for HBES/BACS."
In the third paragraph, delete "network" after "HBES/BACS".
Delete the fourth paragraph and list, which begins: "This document is applicable to…".
Replace the fifth paragraph and list with the following:
"This document covers the following requirements and compliance criteria:
• protection against hazards from the device;
• protection against overvoltages on the network;
• protection against touch current;
• protection against hazards caused by different types of network;
• protection of the communication wiring against overheating caused by excessive current."
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
In 3.1.1, replace "circuits" and "circuit" with "networks" and "network", respectively, in the third
dashed list item of the definition and in Note 1 and Note 4.
In 3.1.6, replace "circuit" with "network" in the term itself and in the definition.
In 3.1.8, replace "circuit" with "network" in the terms, and in the definition and note.
In 3.1.9, replace "circuit" with "network" in the terms, and in the definition and Note 2.
In 3.1.10, replace "circuit" and "circuits" with "network" and "networks", respectively, in the
terms, and in the definition and notes.
© IEC 2021
In 3.1.11, replace "circuit" and "circuits" with "network" and "networks", respectively, in the
terms, and in the definition and notes.
In 3.1.12, replace "circuits" and "circuit" with "networks" and "network", respectively, in the
definition.
In 3.1.13, replace "circuit" with "network" in the definition and replace the SOURCE line with
the following:
[SOURCE: IEC 60050-195:1998, 195-06-19, modified – "(electrically)" has been omitted from
the term and "circuit" has been replaced with "network" in the definition.]
In 3.1.17, replace "circuits" with "networks" in the definition and replace the SOURCE line with
the following:
[SOURCE: IEC 60050-195:1998, 195-06-18, modified – "circuits" has been replaced with
"networks" in the definition.]
3.2 Abbreviated terms
Add the following abbreviated term:
FELV Functional Extra Low Voltage
4 Classification of HBES/BACS network interfaces
Replace the content of Clause 4 with "Void".
5 Safety requirements and compliance criteria
Replace "appropriate" with "electrical" and "Table 1" with "Annex A".
Add the following paragraphs after the existing paragraph:
"This document applies in the following way.
a) If the safety standard for the device to be part of the HBES/BACS does not specify electrical
safety requirements for HBES/BACS, this document (IEC 63044-3) applies.
b) If the safety standard for the device to be part of the HBES/BACS specifies electrical safety
requirements for HBES/BACS, the requirements of this document (IEC 63044-3) shall be
used as the minimum levels required."
6 Requirements
6.1 General
Delete first paragraph.
6.2 Classification requirements of installation areas
6.2.1 Overvoltage category
Delete "system" in the first paragraph.
6.2.2 Pollution degree
Delete "system" in the first paragraph.
– 6 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
Add a new subclause:
6.2.3 Material class
All devices of an HBES/BACS shall comply with the minimum material class IIIa (CTI = 175 V).
6.3 Electrical safety requirements
In the heading to 6.3.2, replace "circuit" with "network".
In 6.3.2.1, heading, replace "products" with "devices".
In the first paragraph of 6.3.2.1, replace "products" with "devices" and "3.1.4" with "3.1.1".
In 6.3.2.2, heading, replace "Products connected to" with "Devices interconnected via".
In 6.3.2.2, replace the first paragraph with the following:
"For devices connected to an HBES/BACS network as defined in IEC 63044-1:2017, 3.1.2 and
IEC 63044-1:2017/AMD1:2021, 3.1.2, the protection against electric shock in accordance with
6.3.1 applies. Table 1 specifies the required electrical separation between the device network
and the HBES/BACS network and applies in addition to the product standard."
Add the following after the first paragraph:
"If the separation between the mains and SELV is done with a transformer, this shall be a safety
transformer according to IEC 61558-2-6 or IEC 61558-2-16."
In the third dashed list item at the end of 6.3.2.2, replace "Table 12" with "in Table 1".
After the sentence of the fourth dashed list item at the end of 6.3.2.2, add the following
sentence:
"If clearances have been chosen for inhomogeneous field conditions according to
IEC 60664‑1:2007, Table F.2, no verification by a voltage withstand test is needed."
In the Note of 6.3.3.1, replace "products" with "devices".
In 6.3.3.2, replace the existing heading with the following new heading:
6.3.3.2 Limitation of touch current from the HBES/BACS device to an ICT network
Replace the first paragraph with the following:
"For HBES/BACS devices connected to an ICT network, as defined in 3.1.1, the appropriate
requirements in IEC 62949 apply in addition to the product standard."
© IEC 2021
In 6.3.3.3, replace the heading with the following new heading:
6.3.3.3 Limitation of the touch current from the device to the HBES/BACS network
In 6.3.3.4.1, replace the Note with the following Note:
NOTE The values used for these requirements are taken from IEC 61140:2016.
In 6.3.3.4.2, 1), add "AC RMS or 10 mA ripple-free DC" after "3,5 mA".
– 8 – IEC 63044-3:2017/AMD1:2021
© IEC 2021
Replace existing Annex A with the following new Annex A:
Annex A
(informative)
List of product standards for electrical safety
Device type Relevant standard Title
Data processing devices (Server stations) IEC 62368-1 Audio/video, information and
communication technology equipment
Peripherals
− Part 1: Safety requirements
(Storage an
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